On Fri, Apr 15, 2016, at 16:41, Victor Stinner wrote:
> If the dictionary values are modified during the loop, the dict
> version is increased. But it's allowed to modify values when you
> iterate on *keys*.
Why is iterating over items different from iterating over keys?
in other words, why do I have to write:
for k in dict:
v = dict[k]
...do some stuff...
dict[k] = something
rather than
for k, v in dict.items():
...do some stuff...
dict[k] = something
It's not clear why the latter is something you want to prevent.
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